103. The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost.
(A) The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost.
(B) The development of a new jumbo rocket is expected to carry the United States into its next phase of space exploration and be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
(C) The new development of a jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
(D) A newly developed jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load of instruments into orbit than the space shuttle can, and at a lower cost.
(E) A newly developed jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load of instruments into orbit than the space shuttle and to cost less.
选D.
OG 11th的官方解释
The challenge here is to revise the sentence and present a complex idea as simply as possible.What will deliver the instruments in to orbit? They will be delivered not by the development of a rocket but rather by the rocket itself; the jumbo rocket, not its development, must be the subject of the sentence. The phrase a heavier load of instruments than the space shuttle suggests a comparison between the load of instruments and the shuttle, whereas it is actually the different capabilities of the rocket and the shuttle that are being compared. The comparison should be written: the jumbo rocket will be able to deliver a heavier load…than the space shuttle can.
That is used to introduce restrictive clauses; such clauses are essential to the meaning of a sentence. The that is expected…exploration clause is not essential; it should be introduced by which and set off with commas.
选Ｄ，我没有疑问，只是觉得红字部分的解释好像是通过是否essential判断用ｔｈａｔ的限定性从句还是ｗｈｉｃｈ非限定的，这里是否ｅｓｓｅｎｔａｉｌ感觉很不好界定呢，请ＮＮ指教～～～
‘essential’的判定确实不太好把握，
去掉clause部分看看句子还能不能表示得清楚明白，
如果去掉不影响表达就不essential，
去掉影响表达就essential，
这里我有一个小感觉，就是红色的解释所以放在了最后来说，说明其不是决定性质的correctiveness，而应该是effectiveness的；
而在实际的句子中真的不太好确定，尤其是当把non-restri写成restri时，很难根据这个来作决定，所以判断时还是结合其他考点来看吧；
谢谢steve~
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